Green turtle. This species has a small and blunt head with a finely serrated beak, which helps them in tearing algae and sea grasses, their main food source.

Green turtle (Chelonia mydas). As hatchlings, green turtles inhabit oceanic areas and have an omnivorous diet with a strong carnivorous tendency. When they shift to coastal neritic habitat, they become primarily herbivores, foraging on algae and seagrass.